Add google benchmark for NormalEstimation

.ci/azure-pipelines/build/macos.yaml

@@ -3,7 +3,7 @@ steps:
     # find the commit hash on a quick non-forced update too
     fetchDepth: 10
   - script: |
-      brew install cmake pkg-config boost eigen flann glew libusb qhull vtk glew qt5 libpcap libomp brewsci/science/openni
+      brew install cmake pkg-config boost eigen flann glew libusb qhull vtk glew qt5 libpcap libomp google-benchmark brewsci/science/openni
       git clone https://github.com/abseil/googletest.git $GOOGLE_TEST_DIR # the official endpoint changed to abseil/googletest
       cd $GOOGLE_TEST_DIR && git checkout release-1.8.1
     displayName: 'Install Dependencies'

.ci/azure-pipelines/build/windows.yaml

@@ -11,7 +11,7 @@ steps:
   - pwsh: Get-PSDrive
     displayName: "Check free space"
   - script: |
-      vcpkg.exe install eigen3 flann gtest qhull --triplet %PLATFORM%-windows && vcpkg.exe list
+      vcpkg.exe install eigen3 flann gtest qhull benchmark --triplet %PLATFORM%-windows && vcpkg.exe list
     displayName: 'Install C++ Dependencies Via Vcpkg'
   - script: |
       mkdir %BUILD_DIR% && cd %BUILD_DIR%

.dev/docker/env/Dockerfile

@@ -26,6 +26,7 @@ RUN apt-get update \
       libflann-dev \
       libglew-dev \
       libgtest-dev \
+      libbenchmark-dev \
       libopenni-dev \
       libopenni2-dev \
       libproj-dev \

benchmarks/CMakeLists.txt

@@ -0,0 +1,13 @@
+set(SUBSYS_NAME benchmarks)
+set(SUBSYS_DESC "Point cloud library benchmarks")
+set(SUBSYS_DEPS common features search kdtree io)
+set(DEFAULT ON)
+set(build TRUE)
+set(REASON "Enabled by default")
+PCL_SUBSYS_OPTION(build "${SUBSYS_NAME}" "${SUBSYS_DESC}" ${DEFAULT} "${REASON}")
+PCL_SUBSYS_DEPEND(build "${SUBSYS_NAME}" DEPS ${SUBSYS_DEPS})
+include_directories("${CMAKE_CURRENT_SOURCE_DIR}/include")
+find_package(benchmark REQUIRED)
+add_executable(example example.cpp)
+target_link_libraries(example benchmark::benchmark pcl_io pcl_search pcl_features)
+#TODO set_target_properties?

benchmarks/example.cpp

@@ -0,0 +1,22 @@
+#include <benchmark/benchmark.h>
+#include <pcl/features/normal_3d.h> // for NormalEstimation
+#include <pcl/io/pcd_io.h> // for PCDReader
+
+static void BM_NormalEstimation(benchmark::State& state) {
+  // Perform setup here
+  pcl::PointCloud<pcl::PointXYZ>::Ptr cloud (new pcl::PointCloud<pcl::PointXYZ>);
+  pcl::PCDReader reader;
+  reader.read ("/home/markus/pcd_files/milk_cartoon_all_small_clorox.pcd", *cloud);
+  pcl::NormalEstimation<pcl::PointXYZ, pcl::Normal> ne;
+  ne.setInputCloud (cloud);
+  ne.setKSearch (100);
+  pcl::PointCloud<pcl::Normal>::Ptr cloud_normals (new pcl::PointCloud<pcl::Normal>);
+  for (auto _ : state) {
+    // This code gets timed
+    ne.compute (*cloud_normals);
+  }
+}
+// Register the function as a benchmark
+BENCHMARK(BM_NormalEstimation);
+// Run the benchmark
+BENCHMARK_MAIN();